87373805 has 16 divisors (see below), whose sum is σ = 106265520. Its totient is φ = 68961792.

The previous prime is 87373801. The next prime is 87373813. The reversal of 87373805 is 50837378.

It can be written as a sum of positive squares in 8 ways, for example, as 7396 + 87366409 = 86^2 + 9347^2 .

It is a cyclic number.

It is not a de Polignac number, because 87373805 - 2² = 87373801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87373801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156587 + ... + 157143.

It is an arithmetic number, because the mean of its divisors is an integer number (6641595).

Almost surely, 2^87373805 is an apocalyptic number.

It is an amenable number.

87373805 is a deficient number, since it is larger than the sum of its proper divisors (18891715).

87373805 is a wasteful number, since it uses less digits than its factorization.

87373805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 87373805 is about 9347.3956265903. The cubic root of 87373805 is about 443.7384714323.

The spelling of 87373805 in words is "eighty-seven million, three hundred seventy-three thousand, eight hundred five".